Perhaps you should try some spelling variations:
phan thuc » nhan thuc, phap thuc, pham thuc
duy nhanh » duy khanh, day nhanh, duy anh
cau tren » cu tren, dau tren, ca tren
day hanh » day nhanh, day thanh, dao hanh
cuu tre » cua tre, cau treo
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
ve phan » va phan, ke phan, ve phat
hieu ve » hieu va, hieu van
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky nang x hoi. hieu ve phan thuc ((day hanh) or (duy nhanh)) de ((cuu tre) OR (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang x hoi. hieu ve phan thuc ((day hanh) OR (duy nhanh)) de ((cuu tre) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky nang x hoi. hieu ve phan thuc ((day hanh) or (duy nhanh)) de ((cuu tre) OR (cau tren))".
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang x hoi. hieu ve phan thuc ((day hanh) or (duy nhanh)) de ((cuu tre) OR (cau tren))*.